Plenary Lecture

Variational Approach to Dissipative Optical Solitons

Professor Mário F. S. Ferreira
I3N-Institute of Nanostructures, Nanomodelling and Nanofabrication
Dapartment of Physics, University of Aveiro, Portugal
E-mail: mfernando@ua.pt

Abstract: We use the variational approach to find several types of the dissipative solitons described by the cubic-quintic complex Ginzburg-Landau equation (CGLE). In particular, we re-obtain some exact solutions corresponding to stationary solitons of the CGLE.  We also apply this approach to find approximate solutions for pulsating solitons. We show that the evolution equations for the soliton parameters derived using the variational approach are similar to those obtained by the method of moments.

Brief Biography of the Speaker: Mário F. S. Ferreira was born in Ovar, Portugal. He graduated in Physics from the University of Porto, Portugal,  and he received the Ph.D. degree in Physics in 1992 from the University of Aveiro, Portugal, where he is now a Professor at the Physics Department. Between 1990 and 1991 he was at the University of Essex, UK, performing experimental work on external cavity semiconductor lasers and nonlinear optical fiber amplifiers. His research interests have been concerned with the modeling and characterization of multi-section semiconductor lasers for coherent systems, quantum well lasers, optical fiber amplifiers and lasers, soliton propagation, nanophotonics, polarization and nonlinear effects in optical fibers. He is actually the leader of the Optics and Optoelectronics Group of the I3N – Institute of Nanostructures, Nanomodelling and Nanofabrication. He has written about 300 scientific journal and conference publications, a book with the title: “Optics and Photonics” (Lidel, 2003, in Portuguese) and another with the title: “Nonlinear Effects in Optical Fibers” (Wiley & OSA, May 2011). He is a member of the Optical Society of America (OSA), SPIE - The International Society for Optical and Photonics, and the Portuguese Physical Society. He is a Travelling Lecturer of SPIE. He served in various committees of the OSA and SPIE, having been also a member of the Telecommunications Committee of the “International Association of Science and Technology for Development” (IASTED). He served also in the technical committees of various international conferences. He served as a reviewer of several scientific journals in the area of optics and optoelectronics. He is presently an Associate Editor of “Optical Fiber Technology- Materials, Devices, and Systems” (Elsevier) and a member of the Advisory Board of “Fiber and Integrated Optics” (Taylor & Francis), “Nonlinear Optics, Quantum Optics” (Old City Publishing, Inc.), “Research Letters in Optics” (Hindawi Publishing Corporation), and “International Journal of Optics” (Hindawi Publishing Corporation). He was the Guest Editor of a Special Issue of “Fiber and Integrated Optics”, published in 2005, dedicated exclusively to the fiber and integrated optics activity carried out in Portugal.

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